AM_Cu4Bi4S9 Formula: Cu4 Bi4 S9 Name: Cu4Bi4S9 Unit cell: 11.589 32.05 3.951 90.0 90.0 90.0 , V=1467.51 Space group: PBNM (62)

Takeuchi Y , Ozawa T , Zeitschrift fur Kristallographie , 141 (1975) p.217-232, The structure of Cu4Bi4S9 and its relation to the structures of covellite,, CuS and bismuthinite, Bi2S3